Automatic oiler



. the following oiler constructed according to this invention.

'- through the Patented Mar. `22, 1927.

DANIEL JOSEPH EGAN; 0F lIPICHER, OKLAHOMA..`

AUTOMATIC orLnn.

vApplication tiled June 3,'

The present invention relates to automatic oilers, particularly for usein rock drilling and other machines wherein. it is desired to feedthe oilwith the motive fluid for operating the machines or tools. p

An object of the present invention isi to provide an automatic oiler which insures the positive and direct feeding of the 'oil by the liuid under'pressure and without creating any appreciable back pressure or suction in the feed line.

Another object of the invention is to pro# vide an automatic oiler of this character which is of such construction that it may be shaped to conform to the general pipe .line and usedin confined places and be efficiently operated therein.

A further object of the invention is to provide an automatic oiler which is capable of carrying a suflicient quantity of oil to maintaina constant feed thereof through I the iiuid line for an entire day, or through- Out the average working period of time to offset the necessity for interruption in the working of the machine or tool to replenish .theel supply.

A still furtherobject of the invention is to'provide a bodyA having substantially 'coakial motive fluid and oilcharnbers proportioned to provide a substantially uniform fluid passage therebetween of a cross sec-l tional area substantially equal Vto the supply pipe to vpreventback pressure and suction 41n the iiuid line'incident to the interposi-'l tioning of the oiler in the supply pipe.

The invention also provides an oil' chamber in the direct path of the motive fluid and forwardly openingcheck valves for the Yoil chamber, Varranged to receive direct impact .of the fluidand yield therewithfor admixing with and carrying 0E small portions of the oil into the oil pipe.

The above and various other objects and advantages of .this invention will in part be described in and in art'be understood from detailed description of theresent preferred embodiment, the same' b eing illustrated in the accompanying draw' ing, wherein: i

^ Fig. 1 is a side elevation o f an automatic Fig. 2 is a longitudinal vertical section same. Fig. 3 is atransverse section through the 'oiler taken on the line 3 -3 of Fig. 2.

Fig. 4'is an enlarged longitudinal sec-Vv 1925. Serial No. 34,668.

tion through one of the check valves employed, and

Fig. 5 is an enlarged side. elevation of the check valve.'`

Referring to the drawing-10 designates a pipe section from a source of motive fluid under pressure adapted to enter the improved oiler, and 11 designates another sect1on of pipe leadino' from the oiler -and' indicating, together withV the section 10 a'fluid pipe line for supplying motive power -to al rock drill or other suitable tool or machine.

The oiler comprises a pair of substantially elliptical chambered casings 12 and 13 arranged one within the other and nspaced apart by .suitable webs 14 and 15 which areV relatively thin to leave an interposed fluid passage substantially unobstructed between the chambered casings 12 and 13.

The outer casing 12 is provided with a coupling portion 16 at each end and may have an exterior angular face to receive a tool to facilitate the threading of each cou-Y pling portion 16 to its adjacent pipe section 10 or 11. rlfhe inner'casing 13 is provided at each end with a valve sleeve 17 preferably vintegral with the casing 13 and arranged coaxially with the casings and with the coupling'portions 16. In each valve sleeve 17 isfthreaded or otherwise suitably secured, a check valve. -Each check valve as shown in Figs. 4 and 5 comprises a casing 18 whichv the spring 20 against the ball 19 and normally hold the latter to\ its seat 23 at the other end'of the-casing 18. 'The casing 18 has a central aperture 24 leading directly into the valve Seat 23. The outer end of each valve casing 18 is provided with angular faces 25 adapted to receive-a socket wrench or the'like for positioning and adjusting the check valves intheir sleeves 17. The outer ends of the screw plugs 22 are also given :suitable configurations for. interlocking engagement with a tool for adjusting. the plugs in the valve casings.

'The device isfprovided with a'removable plug 26 iu onefside which closes an open! ing extending Ythrough the web 14 to the l l a .in 13, permitting a small ner casing Abuilds up v pansion of the fluid ,oiler. As the check ll end of A the o' er. l

. connected.

chamber of-casing 13, the plug being able for filling the inner casing wit quired quantity of oil. Air or other Huid is admitted through the pipe section 10 to the outer casing 12 and is diverged into the, annular passage between the Vcasings 12 andl by the adjacentvalve' sleeve 17 and the protruding end of the adjacent valve casing 18. A small portion of the fluid enters the o enin 24 of the valve casin and unseats t e bal 19'andpasses into t einner casing 13. The fluid in the inadmixes with theoil therein and sufficient pressure to unseat the' 19 attheother end of the oil easquantity of oil to ejected with the Huid into the pipe sec` tion 11 for pass i e to the drill or other maf chine towhich .t e pipe section 11 may be the reball valve It isY thus seen that the major portion of the fluid passes without interruption throu h the passa e between the casings and it will be noted t 13 are so proportioned vn thickness and lcurvature to prevent compression and eX- lpassing through Vthe valves are disposed in the direct line of flow of the uidthere is but little'or no friction caused by the small amount of pressure exerted upon the check valve to it, for the force of impact is :im substanti y s uicient for opening the valve and no back ressure is created at the 'inletat the walls ofthe casings12 and It is of course understood that-various changes and modifications may b'emade in the details of construction and Adesign of the. above specifically described embodiment of the present invention,l and that the same may be varied as requirements of manufacture positioned 'within the other'of said casings and in spaced relation {theretoymeans for supplying oil to the inner casing, coupling i means carried at each end of the outer casing, saidinner casing terminating at o posite ends with threaded valve s1eeve s,"an arranged coaxially with the'couplings-, 4 valve casings carried cally operated valve casi'ngs for controllin the intakeand voutlet of oil to and from t 2. In an automaticoiler,

by the sleeves, and automatithe combination of a casing having a fluid chamber ,provided i 60` inlet and outlet with oppositely disposed passage of fluid openings to permit theA valvel means' mounted in the e inner casing. I

therethru and a' chamber in .said casing adapted to contain a quantity of oil and having inlet and outlet openings adjacent, respectively, -the openings of" -the fluid chamber; an inwardl opening check valve in the inletr opening o said oil chamber;'and i an outwardly openin check' valve in the outlet opening ofsaid oi chamber.

DANIEL JOSEPH 

